the fleet is a part of the pentagon's most expensive weapons program. the jets will not be flying into the cause of the damaged engine blake is found. >> in world new is, north korea said a where, the red warning to a u.s. army commander. the u.s. and south korea are planning to conduct what they call routine, a joint military drills next month. officials from the north say that the drills are evidence of american hostility. they are threatening violence if the drills are not cancelled. earlier this month, north korea the fight to the united nations by conducting a nuclear weapon test. >> u.s. troops are setting up a base for surveillance drones in the african nation gulf neezher. defense officials say that the drones will be used to track militants and refugees. if they say that information will then be shared with france. french troops have been fighting islamic militants across the border in mali. even though the growth will not be armed, the base could eventually be used for launching air strikes in the region. >> for your health this morning, natio